<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<script type="javascript">
var str="8";
for(i=0;i<2;i++ ){
	str="9"+str;
}
document.write(str+" ");
var i=0;
var str="8";
while(i<2){
	str="9"+str;
	i++;
}
document.write(str+" ");
var i=0;
var str="8";
do{
	str="9"+str;
	i++;
} while(i<2);
document.write(str);
</script>
</head>
<body>

</body>
</html>